CN207923289U - A kind of wide spectrum imaging system for historical relic in-situ scanning - Google Patents
A kind of wide spectrum imaging system for historical relic in-situ scanning Download PDFInfo
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- CN207923289U CN207923289U CN201721842262.8U CN201721842262U CN207923289U CN 207923289 U CN207923289 U CN 207923289U CN 201721842262 U CN201721842262 U CN 201721842262U CN 207923289 U CN207923289 U CN 207923289U
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- historical relic
- dimensional turntable
- hyperspectral imager
- wide spectrum
- scanning
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Abstract
The utility model discloses a kind of wide spectrum imaging systems for historical relic in-situ scanning, including preposition imaging lens, hyperspectral imager, dimensional turntable, controller and tripod；The imaging surface of the preposition imaging lens is overlapped with the entrance slit of the hyperspectral imager；The hyperspectral imager is connect with the dimensional turntable, for carrying out high light spectrum image-forming scanning to the target in multiple orientation in certain fixed position；The dimensional turntable is connect with tripod；The hyperspectral imager and the dimensional turntable are connect with the controller respectively.A kind of wide spectrum imaging system for historical relic in-situ scanning provided by the utility model, spectral resolution is high, and spectral region is wide, covers near ultraviolet visible light near infrared spectrum region；The programmable multi-faceted automatically scanning for carrying out precision sweep, realizing to large-scale historical relic target of dimensional turntable, it is easy to operate.
Description
Technical field
The utility model relates to a kind of wide spectrum imaging systems for historical relic in-situ scanning, belong to optical instrument skill
Art field.
Background technology
Historical relic is the geological material for studying human society history, by the analysis to historical relic, when can obtain residing for historical relic
The historical information in generation, the application technology for making historical relic, the material information etc. to restore relics, so as to infer residing for historical relic when
Generation, the development for pushing application technology and the reparation to historical relic.It is non-renewable therefore right since historical relic is precious history evolvement object
The analysis of historical relic needs to use non-destructive testing technology, can protect the integrality of historical relic and antiquaries is made to obtain respectively
Kind related data.
Spectral imaging technology combines spectral technique and non-intervention imaging technique, it be applied to historical relic's protection field, with
Toward some technologies compared to having many advantages, such as non-contact, remote, real-time, quick, measurement of full field, it is particularly suitable for the original position of historical relic
Long-range nondestructive measurement.Historical relic original position high light spectrum image-forming equipment can carry out historical relic the remote observation and number in situ of unreachable height
Word information collection.The high-resolution spatial information of historical relic and the accurate high-resolution of every bit can be obtained by single pass
Spectral information, and can realize real-time analysis and diagnosis in situ.Can be that historical relic makes by being merged with other digital scanning information
Technique, material presumption, disease screening, previous diagnosis, Digital Study and displaying for repairing intervention etc. provide a kind of most potential
Historical relic investigative technique.
Inventor has found that the optical spectrum imagers currently used for historical relic's protection work commonly encounter as follows in the course of the study
Problem：
(1) spectral region is narrow, most covering visible light range of spectrum (380~780nm human viewables spectral region), main
It is used for the research of cultural artifact surface color.Actually near-infrared spectral coverage also include many useful informations, as historical relic repairing trace,
Surfacing chemical composition information etc., therefore, for historical relic high-spectral data collection, the spectral information of near-infrared spectral coverage
It is very necessary；
(2) spectral resolution is low (wave band number is few), leads multi-spectral imager to be applied at present, beam splitter is using filter
Mating plate, such as optical filter runner or electric tuning optical filter (liquid crystal tunable optical filter LCTF or acousto-optic tunable filter AOTF
Deng), generally there was only several to dozens of spectral coverages, for spectral bandwidth in tens nanometer scales, the useful information of acquisition is limited；
(3) spectrum efficiency is low, and existing high light spectrum image-forming mainly uses diffraction grating or grating-prism-grating
(PGP) spectroscopic modes, are influenced by diffraction efficiency of grating, and spectral transmittance is relatively low (capacity usage ratio is low), the light at long wave
The signal-to-noise ratio of spectrum is very low；And the shortcomings that there are spectrum level aliasings so that spectral region will not be very wide；
(4) spatial resolution is low, and the general focal length of the existing preposition imaging lens of optical spectrum imagers is shorter, to instantaneous field of view
Angle is larger, and when to the target imaging of certain distance, spatial resolution is relatively low, can not obtain the bloom of target high spatial resolution
Spectrogram picture (such as resolution ratio reaches submillimeter level)；
(5) inconvenience is operated with, the optical spectrum imagers for historical relic high light spectrum image-forming are typically mounted at fixed scanning branch
On frame, it is only capable of carrying out EO-1 hyperion scanning imagery to fixed region, areas imaging is smaller, operates with inconvenience at the scene.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of wide spectrum imaging system for historical relic in-situ scanning
System, it can be achieved that wide spectrum, high spectral resolution and high spatial resolution automatic Multidirectional sweeping light spectrum image-forming.
In order to achieve the above object, the utility model implements by the following technical programs：
A kind of wide spectrum imaging system for historical relic in-situ scanning, including preposition imaging lens, hyperspectral imager, two
Tie up turntable and tripod；
The imaging surface of the preposition imaging lens is overlapped with the entrance slit of the hyperspectral imager；The EO-1 hyperion at
Picture instrument is connect with the dimensional turntable, for carrying out high light spectrum image-forming scanning to the target in multiple orientation in fixed position；It is described
Dimensional turntable is placed on tripod.
Further, the hyperspectral imager by entrance slit, curved surface prism, spherical reflector, plane mirror and
Detector forms, and light source is reflected by spherical reflector on curved surface prism by entrance slit after curved surface prism reflects, then by song
Face prism is reflected into through plane mirror in detector through birefringence after refraction.
Further, the preposition imaging lens are made of the long-focus telescope that can obtain high spatial resolution images,
The imaging surface of the long-focus telescope is overlapped with the entrance slit of the hyperspectral imager.
The forward and backward surface of curved surface prism is arc surface, and wherein front surface is concave surface, and rear surface is convex surface, two circles
The center of circle of cambered surface is misaligned, and tool makes the thickness of curved surface prism from top to bottom gradually increase there are one angle between concave and convex surface,
Have the function of convergent beam and light splitting simultaneously.
Further, the dimensional turntable uses U-shaped structure, is separately installed on the trunnion axis and vertical axes of dimensional turntable
Code-disc can accurately control the level and pitch angle of dimensional turntable.
Further include controller, the hyperspectral imager and the dimensional turntable are connect with the controller respectively.
Compared with prior art, what the technical solution of the utility model embodiment was brought has the beneficial effect that：
The beam splitter of the hyperspectral imager of the utility model uses curved surface prism, and spectral region is wide, covers near ultraviolet-
Visible light-near infrared spectrum region, spectral resolution is high, can reach 3nm or more, obtains hundreds of spectral coverages；
Preposition imaging lens use the preposition imaging lens of long-focus, spatial resolution high；
Hyperspectral imager is placed in the programmable electrical turntable of two dimension, it can be achieved that being swept automatically to the multi-faceted of large-scale historical relic target
It retouches, easy to operate, tripod can need to adjust position according to landform, be mounted and dismounted convenient for system.
Description of the drawings
It is required in being described below to embodiment for the clearer technical solution for illustrating the utility model embodiment
The attached drawing used is briefly described, it is clear that, the accompanying drawings in the following description is only some implementations of the utility model
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the system composition schematic diagram of the utility model；
Fig. 2 is index path inside hyperspectral imager；
Fig. 3 is to add index path inside the hyperspectral imager of preposition telescope.
In figure：
Preposition imaging lens 1, hyperspectral imager 2, dimensional turntable 3, controller 4, tripod 5, entrance slit 6, curved surface
Prism 7, spherical reflector 8, plane mirror 9, detector 10.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clear, complete description, it is clear that described embodiment is only a part of the embodiment of the utility model, the implementation being not all of
Example, is based on the embodiments of the present invention, and those of ordinary skill in the art are obtained under the premise of not making the creative labor
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment
The utility model embodiment provides a kind of wide spectrum imaging system for historical relic in-situ scanning, including it is preposition at
As camera lens 1, hyperspectral imager 2, dimensional turntable 3, controller 4 and tripod 5；
The imaging surface of preposition imaging lens 1 is overlapped with the entrance slit of hyperspectral imager 2；Hyperspectral imager 2 and two
It ties up turntable 3 to connect, for carrying out high light spectrum image-forming scanning to the target in multiple orientation in fixed position；Dimensional turntable 3 is placed in
On tripod 5；Hyperspectral imager 2 and dimensional turntable 3 are connect with controller 4 respectively.
The structure has spectral region wide, and optical element is few, the advantage that spectral transmittance is high, spectral resolution is high, spectrum
Range covers near ultraviolet-visible light-near-infrared spectral coverage (360~1000nm).
Hyperspectral imager 2 is by entrance slit 6, curved surface prism 7, spherical reflector 8, plane mirror 9 and detector 10
Composition, light source by entrance slit 6 after the refraction of curved surface prism 7 by 8 reflecting curved surface prism 7 of spherical reflector, then by curved surface rib
Mirror 7 is reflected into through plane mirror 9 in detector 10 through birefringence after refraction.
The hyperspectral imager 2 can be covered as beam splitter its main feature is that spectral region is wide using curved surface prism 7
Lid near ultraviolet-visible light-near-infrared spectral coverage；Spectral resolution is high, and resolution ratio averagely can reach 3nm or more, can obtain simultaneously several
Hundred spectral coverages；Spectrum level aliasing is not present within the scope of entire operating spectrum band, pure spectrum, and spectral transmission can be directly obtained
Rate can reach 90% or more；Stray light is also smaller, can preferably ensure the light spectrum image-forming performance of hyperspectral imager, Er Qiejie
Structure is compact.
Preposition imaging lens 1 are made of the long-focus telescope that can obtain high spatial resolution images, preferably using warp
Allusion quotation Zigzag type long-focus telescope design can get higher spatial resolution, can to target imaging outside tens of rice
Access millimetre-sized spatial resolution.
The imaging surface of the long-focus telescope is overlapped with the entrance slit of the hyperspectral imager 2.
The forward and backward surface of curved surface prism is arc surface, and wherein front surface is concave surface, and rear surface is convex surface, two circles
The center of circle of cambered surface is misaligned, and tool makes the thickness of curved surface prism from top to bottom gradually increase there are one angle between concave and convex surface,
Have the function of convergent beam and light splitting simultaneously.
Dimensional turntable 3 uses U-shaped structure, and code-disc is separately installed on the trunnion axis and vertical axes of dimensional turntable 3, can be right
The level and pitch angle of dimensional turntable 3 accurately control.
Dimensional turntable 3 preferably using the programmable electrical turntable of two dimension, can do sequencing in horizontal and pitch orientation
Precision sweep controls, and hyperspectral imager 2 is placed in dimensional turntable 3, precision sweep control can be programmed, solid at certain
Positioning is set carries out high light spectrum image-forming scanning to the target in multiple orientation, and the multi-faceted height to large-scale target can also be realized on ground
Light spectrum image-forming.
The dimensional turntable 3 is placed on tripod 5, and tripod 5 can need to adjust position according to landform, pacify convenient for system
Assembly and disassembly.
Controller 4, while control is acquired to dimensional turntable 3 and hyperspectral imager 2.
Compared with prior art, what the technical solution of the utility model embodiment was brought has the beneficial effect that：
The beam splitter of the hyperspectral imager of the utility model uses curved surface prism, and spectral region is wide, covers near ultraviolet-
Visible light-near infrared spectrum region, spectral resolution is high, can reach 3nm or more, obtains hundreds of spectral coverages；
Preposition imaging lens use the preposition imaging lens of long-focus, spatial resolution high；
Hyperspectral imager is placed in the programmable electrical turntable of two dimension, it can be achieved that being swept automatically to the multi-faceted of large-scale historical relic target
It retouches, easy to operate, tripod can need to adjust position according to landform, be mounted and dismounted convenient for system.
The above, only specific embodiment of the utility model, but the feature of the utility model is not limited thereto, and is appointed
What is familiar with the people of this technology in the utility model field, and the changes or modifications that can be readily occurred in should all cover at following
In the claim of utility model.
Claims (6)
1. a kind of wide spectrum imaging system for historical relic in-situ scanning, which is characterized in that including preposition imaging lens, EO-1 hyperion
Imager, dimensional turntable and tripod；
The imaging surface of the preposition imaging lens is overlapped with the entrance slit of the hyperspectral imager；
The hyperspectral imager is connect with the dimensional turntable, for carrying out bloom to the target in multiple orientation in fixed position
Compose image scanning；
The dimensional turntable is placed on tripod.
2. a kind of wide spectrum imaging system for historical relic in-situ scanning as described in claim 1, which is characterized in that the height
Optical spectrum imagers are made of entrance slit, curved surface prism, spherical reflector, plane mirror and detector, and light source is by incident narrow
Seam is reflected by spherical reflector on curved surface prism after curved surface prism reflects, then by curved surface prism through birefringence, after refraction
It is reflected into detector through plane mirror.
3. a kind of wide spectrum imaging system for historical relic in-situ scanning as claimed in claim 2, which is characterized in that before described
It sets imaging lens to be made of the long-focus telescope that can obtain high spatial resolution images, the imaging surface of the long-focus telescope
It is overlapped with the entrance slit of the hyperspectral imager.
4. a kind of wide spectrum imaging system for historical relic in-situ scanning as claimed in claim 2, which is characterized in that the song
Prism forward and backward surface in face is arc surface, and wherein front surface is concave surface, and rear surface is convex surface, and the center of circle of two arc surfaces does not weigh
It closes, tool makes the thickness of curved surface prism from top to bottom gradually increase there are one angle between concave and convex surface.
5. a kind of wide spectrum imaging system for historical relic in-situ scanning as described in claim 1, which is characterized in that described two
It ties up turntable and uses U-shaped structure, code-disc is separately installed on the trunnion axis and vertical axes of dimensional turntable, it can be to the water of dimensional turntable
Gentle pitch angle accurately controls.
6. a kind of wide spectrum imaging system for historical relic in-situ scanning as described in claim 1, which is characterized in that further include
Controller, the hyperspectral imager and the dimensional turntable are connect with the controller respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721842262.8U CN207923289U (en) | 2017-12-26 | 2017-12-26 | A kind of wide spectrum imaging system for historical relic in-situ scanning |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721842262.8U CN207923289U (en) | 2017-12-26 | 2017-12-26 | A kind of wide spectrum imaging system for historical relic in-situ scanning |
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| CN207923289U true CN207923289U (en) | 2018-09-28 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342328A (en) * | 2018-10-11 | 2019-02-15 | 中国科学院西安光学精密机械研究所 | A kind of built-in scan type high microspectrum imaging system and imaging method |
| CN113989364A (en) * | 2021-10-21 | 2022-01-28 | 北京航天创智科技有限公司 | Full-automatic multispectral cultural relic information acquisition modeling system and method |
| CN114384043A (en) * | 2022-01-07 | 2022-04-22 | 重庆大学 | Flexible near-infrared trap wave plate, manufacturing process thereof, and method and system applied to cultural relic detection |
-
2017
- 2017-12-26 CN CN201721842262.8U patent/CN207923289U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342328A (en) * | 2018-10-11 | 2019-02-15 | 中国科学院西安光学精密机械研究所 | A kind of built-in scan type high microspectrum imaging system and imaging method |
| CN113989364A (en) * | 2021-10-21 | 2022-01-28 | 北京航天创智科技有限公司 | Full-automatic multispectral cultural relic information acquisition modeling system and method |
| CN114384043A (en) * | 2022-01-07 | 2022-04-22 | 重庆大学 | Flexible near-infrared trap wave plate, manufacturing process thereof, and method and system applied to cultural relic detection |
| CN114384043B (en) * | 2022-01-07 | 2024-03-22 | 重庆大学 | Flexible near-infrared notch plate, manufacturing process thereof and method and system applied to cultural relic detection |
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